Give the individual the power to be a producer as well as a consumer.

Everyone is born equally capable but lacks equal opportunity.

I built a system simple enough to sustain itself.

In the same way that you're driven in your business to keep innovating - Facebook is a wonderful example of constant innovation - think about doing that in philanthropy.

What we say here every day is that our success is really based on our members' success, our community's success. We've created an infrastructure and laid some basic ground rules to create this marketplace.

By building a simple system, with just a few guiding principles, eBay was open to organic growth.

It is not really work if you are having fun.